The purpose of this paper is to examine witch factors lays behind political decisions when reforming upper secondary school. Three major factors are used: political, economical and structural. These factors become visible by comparing the school reforms 1965 and the coming one in 2009. An analytical scheme is used to find the factors in the primary information. The study is based both political inquiries and on debate articles from newspapers and political papers.The results show that two factors are more visible than the third, and that is the ideological and structural. The economical factor is visible but hasn’t the same influence in the debate as the two others and it isn’t conclusive for the reforms.